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Finding the Fourth Proportional to 20,444.44, 30,666.66 and 8,750.08

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Solution

The fourth proportional to 20,444.44, 30,666.66 and 8,750.08 is: 13,125.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,444.44 : 30,666.66 = 8,750.08 : x
  2. Step 2: Convert to fraction form
    20,444.44/30,666.66 = 8,750.08/x
  3. Step 3: Cross multiply
    20,444.44x = 30,666.66 × 8,750.08
  4. Step 4: Simplify right side
    20,444.44x = 268,335,728.33
  5. Step 5: Solve for x
    x = 268,335,728.33/20,444.44
  6. Step 6: Final answer
    x = 13,125.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.